:root {
      --bg-base: #0c0f1d;
      --bg-surface: #14182b;
      --bg-card: rgba(23, 28, 48, 0.75);
      --bg-card-hover: rgba(32, 39, 66, 0.9);
      --neon-cyan: #00f2fe;
      --neon-blue: #4facfe;
      --neon-purple: #9b51e0;
      --neon-pink: #f72585;
      --neon-amber: #ffb703;
      --text-main: #f8fafc;
      --text-muted: #94a3b8;
      --text-sub: #cbd5e1;
      --border-color: rgba(0, 242, 254, 0.2);
      --border-focus: rgba(0, 242, 254, 0.7);
      --card-glow: 0 8px 32px 0 rgba(0, 242, 254, 0.08);
      --neon-glow: 0 0 20px rgba(0, 242, 254, 0.4);
      --container-max: 1240px;
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
      -webkit-font-smoothing: antialiased;
    }

    html {
      scroll-behavior: smooth;
      font-size: 16px;
    }

    body {
      background-color: var(--bg-base);
      background-image: 
        radial-gradient(circle at 15% 15%, rgba(0, 242, 254, 0.08) 0%, transparent 40%),
        radial-gradient(circle at 85% 35%, rgba(155, 81, 224, 0.1) 0%, transparent 45%),
        radial-gradient(circle at 50% 80%, rgba(247, 37, 133, 0.06) 0%, transparent 50%),
        linear-gradient(180deg, #090c17 0%, #0d1224 50%, #080b14 100%);
      background-attachment: fixed;
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.65;
      overflow-x: hidden;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: var(--transition);
    }

    img {
      max-width: 100%;
      height: auto;
      display: block;
    }

    .container {
      width: 100%;
      max-width: var(--container-max);
      margin: 0 auto;
      padding: 0 24px;
    }

    /* 顶部导航 */
    .header-nav {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(12, 15, 29, 0.85);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border-bottom: 1px solid rgba(0, 242, 254, 0.15);
      transition: var(--transition);
    }

    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 76px;
    }

    .brand-box {
      display: flex;
      align-items: center;
      gap: 16px;
    }

    .ai-page-logo {
      height: 42px;
      width: auto;
      object-fit: contain;
      filter: drop-shadow(0 0 8px rgba(0, 242, 254, 0.5));
    }

    .brand-text {
      display: flex;
      flex-direction: column;
    }

    .brand-title {
      font-size: 1.25rem;
      font-weight: 800;
      background: linear-gradient(90deg, #ffffff, var(--neon-cyan));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      letter-spacing: 0.5px;
    }

    .brand-tagline {
      font-size: 0.72rem;
      color: var(--neon-blue);
      text-transform: uppercase;
      letter-spacing: 1px;
    }

    .nav-menu {
      display: flex;
      align-items: center;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
      list-style: none;
    }

    .nav-links li a {
      font-size: 0.92rem;
      font-weight: 500;
      color: var(--text-sub);
      padding: 8px 12px;
      border-radius: var(--radius-sm);
      display: block;
    }

    .nav-links li a:hover,
    .nav-links li a.active {
      color: var(--neon-cyan);
      text-shadow: 0 0 10px rgba(0, 242, 254, 0.6);
    }

    .nav-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .btn-glow {
      position: relative;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      font-size: 0.92rem;
      font-weight: 600;
      color: #0c0f1d;
      background: linear-gradient(135deg, var(--neon-cyan) 0%, var(--neon-blue) 100%);
      border: none;
      border-radius: 50px;
      cursor: pointer;
      box-shadow: 0 0 16px rgba(0, 242, 254, 0.4);
      transition: var(--transition);
      white-space: nowrap;
    }

    .btn-glow:hover {
      box-shadow: 0 0 25px rgba(0, 242, 254, 0.8);
      transform: translateY(-2px);
      color: #000;
    }

    .btn-outline {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 9px 20px;
      font-size: 0.92rem;
      font-weight: 600;
      color: var(--neon-cyan);
      background: rgba(0, 242, 254, 0.05);
      border: 1px solid var(--neon-cyan);
      border-radius: 50px;
      cursor: pointer;
      transition: var(--transition);
      white-space: nowrap;
    }

    .btn-outline:hover {
      background: rgba(0, 242, 254, 0.15);
      box-shadow: 0 0 18px rgba(0, 242, 254, 0.35);
      transform: translateY(-2px);
    }

    .mobile-toggle {
      display: none;
      background: none;
      border: 1px solid var(--border-color);
      color: var(--text-main);
      padding: 8px 12px;
      border-radius: var(--radius-sm);
      cursor: pointer;
    }

    /* Hero 首屏 (无图规则) */
    .hero-section {
      position: relative;
      padding: 90px 0 70px;
      overflow: hidden;
      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }

    .hero-glow-blob-1 {
      position: absolute;
      top: -100px;
      left: 10%;
      width: 450px;
      height: 450px;
      background: radial-gradient(circle, rgba(0, 242, 254, 0.18) 0%, transparent 70%);
      filter: blur(50px);
      pointer-events: none;
    }

    .hero-glow-blob-2 {
      position: absolute;
      top: 50px;
      right: 10%;
      width: 500px;
      height: 500px;
      background: radial-gradient(circle, rgba(155, 81, 224, 0.16) 0%, transparent 70%);
      filter: blur(60px);
      pointer-events: none;
    }

    .hero-inner {
      text-align: center;
      max-width: 900px;
      margin: 0 auto;
      position: relative;
      z-index: 2;
    }

    .badge-pill {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 18px;
      background: rgba(0, 242, 254, 0.1);
      border: 1px solid rgba(0, 242, 254, 0.3);
      border-radius: 50px;
      font-size: 0.85rem;
      color: var(--neon-cyan);
      margin-bottom: 24px;
      box-shadow: 0 0 12px rgba(0, 242, 254, 0.2);
    }

    .badge-dot {
      width: 8px;
      height: 8px;
      background: var(--neon-cyan);
      border-radius: 50%;
      box-shadow: 0 0 8px var(--neon-cyan);
      animation: pulse 2s infinite;
    }

    @keyframes pulse {
      0%, 100% { opacity: 1; transform: scale(1); }
      50% { opacity: 0.4; transform: scale(0.85); }
    }

    .hero-title {
      font-size: clamp(2rem, 4.2vw, 3.1rem);
      font-weight: 800;
      line-height: 1.25;
      letter-spacing: -0.5px;
      margin-bottom: 22px;
      background: linear-gradient(135deg, #ffffff 30%, #a5f3fc 70%, #d8b4fe 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      text-shadow: 0 0 30px rgba(0, 242, 254, 0.2);
    }

    .hero-subtitle {
      font-size: clamp(1rem, 1.8vw, 1.2rem);
      color: var(--text-sub);
      line-height: 1.7;
      margin-bottom: 36px;
      max-width: 780px;
      margin-left: auto;
      margin-right: auto;
    }

    .hero-cta-group {
      display: flex;
      align-items: center;
      justify-content: center;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 48px;
    }

    .btn-hero-primary {
      padding: 14px 34px;
      font-size: 1.05rem;
      font-weight: 700;
      color: #050811;
      background: linear-gradient(135deg, #00f2fe 0%, #4facfe 100%);
      border: none;
      border-radius: 50px;
      cursor: pointer;
      box-shadow: 0 0 24px rgba(0, 242, 254, 0.6);
      transition: var(--transition);
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }

    .btn-hero-primary:hover {
      box-shadow: 0 0 36px rgba(0, 242, 254, 0.9);
      transform: translateY(-3px) scale(1.02);
      color: #000;
    }

    .btn-hero-secondary {
      padding: 13px 30px;
      font-size: 1.05rem;
      font-weight: 600;
      color: #ffffff;
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.2);
      border-radius: 50px;
      transition: var(--transition);
      backdrop-filter: blur(10px);
    }

    .btn-hero-secondary:hover {
      border-color: var(--neon-cyan);
      color: var(--neon-cyan);
      box-shadow: 0 0 20px rgba(0, 242, 254, 0.3);
      transform: translateY(-2px);
    }

    /* 纯CSS首屏指标卡片 (无图) */
    .hero-metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin-top: 10px;
      text-align: left;
    }

    .metric-card {
      background: linear-gradient(180deg, rgba(20, 25, 45, 0.8) 0%, rgba(13, 17, 32, 0.9) 100%);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 20px;
      transition: var(--transition);
      position: relative;
      overflow: hidden;
    }

    .metric-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 2px;
      background: linear-gradient(90deg, transparent, var(--neon-cyan), transparent);
      opacity: 0.6;
    }

    .metric-card:hover {
      transform: translateY(-4px);
      border-color: var(--neon-cyan);
      box-shadow: 0 10px 24px rgba(0, 242, 254, 0.15);
    }

    .metric-num {
      font-size: 1.9rem;
      font-weight: 800;
      background: linear-gradient(90deg, #fff, var(--neon-cyan));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      margin-bottom: 4px;
    }

    .metric-label {
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    /* 通用Section */
    .section-wrap {
      padding: 85px 0;
      position: relative;
    }

    .section-wrap:nth-child(even) {
      background: rgba(13, 17, 33, 0.4);
    }

    .section-header {
      text-align: center;
      max-width: 720px;
      margin: 0 auto 55px;
    }

    .section-tag {
      font-size: 0.85rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 2px;
      color: var(--neon-cyan);
      margin-bottom: 12px;
      display: inline-block;
      text-shadow: 0 0 10px rgba(0, 242, 254, 0.4);
    }

    .section-title {
      font-size: clamp(1.7rem, 3vw, 2.3rem);
      font-weight: 800;
      color: #ffffff;
      margin-bottom: 14px;
      line-height: 1.35;
    }

    .section-desc {
      font-size: 1rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 模型矩阵徽章墙 */
    .models-bar-box {
      margin-top: 30px;
      background: rgba(16, 21, 38, 0.6);
      border: 1px dashed rgba(0, 242, 254, 0.25);
      border-radius: var(--radius-md);
      padding: 24px;
      text-align: center;
    }

    .models-tag-cloud {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 10px;
      margin-top: 14px;
    }

    .model-tag {
      font-size: 0.85rem;
      font-weight: 600;
      padding: 6px 14px;
      background: rgba(0, 242, 254, 0.06);
      border: 1px solid rgba(0, 242, 254, 0.2);
      border-radius: 30px;
      color: var(--text-sub);
      transition: var(--transition);
    }

    .model-tag:hover {
      background: rgba(0, 242, 254, 0.2);
      color: #fff;
      border-color: var(--neon-cyan);
      box-shadow: 0 0 12px rgba(0, 242, 254, 0.4);
      transform: translateY(-2px);
    }

    /* 场景与核心能力栅格 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .service-card {
      background: var(--bg-card);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: var(--radius-md);
      padding: 28px;
      transition: var(--transition);
      position: relative;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      backdrop-filter: blur(10px);
    }

    .service-card:hover {
      background: var(--bg-card-hover);
      border-color: var(--neon-cyan);
      box-shadow: 0 12px 30px rgba(0, 242, 254, 0.15);
      transform: translateY(-5px);
    }

    .service-card-top {
      margin-bottom: 20px;
    }

    .service-icon-box {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: linear-gradient(135deg, rgba(0, 242, 254, 0.15), rgba(155, 81, 224, 0.15));
      border: 1px solid rgba(0, 242, 254, 0.3);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.3rem;
      margin-bottom: 18px;
      color: var(--neon-cyan);
    }

    .service-card-title {
      font-size: 1.22rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 10px;
    }

    .service-card-desc {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.65;
    }

    .service-pills {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
      margin-top: 18px;
    }

    .spill {
      font-size: 0.75rem;
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.1);
      padding: 3px 8px;
      border-radius: 4px;
      color: var(--text-sub);
    }

    /* 平台介绍图文板块 */
    .about-platform-grid {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 40px;
      align-items: center;
    }

    .about-left-content {
      padding-right: 15px;
    }

    .about-feature-list {
      list-style: none;
      margin: 24px 0;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .about-item {
      display: flex;
      align-items: flex-start;
      gap: 14px;
    }

    .about-item-icon {
      width: 24px;
      height: 24px;
      border-radius: 50%;
      background: rgba(0, 242, 254, 0.2);
      border: 1px solid var(--neon-cyan);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--neon-cyan);
      font-size: 0.8rem;
      flex-shrink: 0;
      margin-top: 2px;
    }

    .about-item-text h4 {
      font-size: 1.05rem;
      color: #fff;
      margin-bottom: 4px;
    }

    .about-item-text p {
      font-size: 0.9rem;
      color: var(--text-muted);
    }

    .about-img-box {
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: 0 15px 35px rgba(0, 0, 0, 0.5), 0 0 25px rgba(0, 242, 254, 0.15);
      position: relative;
    }

    .about-img-box img {
      width: 100%;
      transition: transform 0.5s ease;
    }

    .about-img-box:hover img {
      transform: scale(1.03);
    }

    /* 对比评测表格板块 */
    .rating-badge-highlight {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      background: linear-gradient(90deg, rgba(255, 183, 3, 0.15), rgba(247, 37, 133, 0.15));
      border: 1px solid rgba(255, 183, 3, 0.4);
      padding: 10px 24px;
      border-radius: 50px;
      margin-bottom: 30px;
    }

    .stars-glow {
      color: #ffb703;
      font-size: 1.15rem;
      letter-spacing: 2px;
    }

    .score-bold {
      font-size: 1.15rem;
      font-weight: 800;
      color: #fff;
    }

    .table-container {
      width: 100%;
      overflow-x: auto;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      background: rgba(18, 23, 42, 0.8);
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    }

    .compare-table {
      width: 100%;
      border-collapse: collapse;
      min-width: 680px;
      text-align: left;
    }

    .compare-table th, 
    .compare-table td {
      padding: 18px 22px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }

    .compare-table th {
      background: rgba(10, 13, 26, 0.8);
      font-weight: 700;
      font-size: 0.98rem;
      color: var(--neon-cyan);
    }

    .compare-table th.col-feature {
      width: 25%;
    }

    .compare-table th.col-jx {
      width: 40%;
      background: rgba(0, 242, 254, 0.12);
      border-left: 1px solid var(--border-color);
      border-right: 1px solid var(--border-color);
      color: #fff;
      font-size: 1.08rem;
    }

    .compare-table td.col-jx {
      background: rgba(0, 242, 254, 0.04);
      border-left: 1px solid var(--border-color);
      border-right: 1px solid var(--border-color);
      color: #fff;
      font-weight: 600;
    }

    .compare-table td.col-other {
      color: var(--text-muted);
      font-size: 0.92rem;
    }

    /* 案例展示画廊 */
    .case-gallery-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .case-card {
      background: var(--bg-card);
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid rgba(255, 255, 255, 0.07);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }

    .case-card:hover {
      transform: translateY(-6px);
      border-color: var(--neon-cyan);
      box-shadow: 0 14px 30px rgba(0, 242, 254, 0.2);
    }

    .case-img-holder {
      position: relative;
      aspect-ratio: 16 / 9;
      overflow: hidden;
      background: #111422;
    }

    .case-img-holder.square-ratio {
      aspect-ratio: 1 / 1;
    }

    .case-img-holder img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }

    .case-card:hover .case-img-holder img {
      transform: scale(1.06);
    }

    .case-content {
      padding: 22px;
      flex: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .case-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 8px;
    }

    .case-desc {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 14px;
    }

    /* 流程与网络步骤 */
    .steps-timeline-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }

    .step-item {
      background: var(--bg-card);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: var(--radius-md);
      padding: 26px 20px;
      position: relative;
      transition: var(--transition);
    }

    .step-item:hover {
      border-color: var(--neon-purple);
      box-shadow: 0 10px 25px rgba(155, 81, 224, 0.2);
      transform: translateY(-4px);
    }

    .step-num {
      font-size: 2.2rem;
      font-weight: 900;
      background: linear-gradient(135deg, var(--neon-cyan), var(--neon-purple));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      margin-bottom: 12px;
      line-height: 1;
    }

    .step-title {
      font-size: 1.1rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 8px;
    }

    .step-desc {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 用户评论卡片 */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .review-card {
      background: var(--bg-card);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: var(--radius-md);
      padding: 26px;
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .review-card:hover {
      border-color: var(--neon-cyan);
      transform: translateY(-4px);
      box-shadow: 0 10px 24px rgba(0, 242, 254, 0.12);
    }

    .review-stars {
      color: #ffb703;
      font-size: 0.95rem;
      margin-bottom: 14px;
    }

    .review-quote {
      font-size: 0.92rem;
      color: var(--text-sub);
      line-height: 1.7;
      margin-bottom: 20px;
      font-style: italic;
    }

    .review-author {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      padding-top: 14px;
    }

    .review-avatar-char {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--neon-cyan), var(--neon-blue));
      color: #0c0f1d;
      font-weight: 800;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.1rem;
      flex-shrink: 0;
    }

    .author-name {
      font-size: 0.95rem;
      font-weight: 700;
      color: #fff;
    }

    .author-role {
      font-size: 0.8rem;
      color: var(--neon-cyan);
    }

    /* FAQ 手风琴面板 */
    .faq-wrapper {
      max-width: 880px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .faq-card {
      background: var(--bg-card);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: var(--transition);
    }

    .faq-card.open {
      border-color: var(--neon-cyan);
      box-shadow: 0 6px 20px rgba(0, 242, 254, 0.15);
    }

    .faq-header {
      padding: 20px 24px;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      font-weight: 600;
      font-size: 1.02rem;
      color: #fff;
      user-select: none;
    }

    .faq-header:hover {
      color: var(--neon-cyan);
    }

    .faq-toggle-icon {
      font-size: 1.2rem;
      transition: transform 0.3s ease;
      color: var(--neon-cyan);
    }

    .faq-card.open .faq-toggle-icon {
      transform: rotate(45deg);
    }

    .faq-body {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease, padding 0.35s ease;
      background: rgba(10, 13, 26, 0.5);
      color: var(--text-muted);
      font-size: 0.92rem;
      line-height: 1.7;
      padding: 0 24px;
    }

    .faq-card.open .faq-body {
      max-height: 250px;
      padding: 0 24px 22px;
    }

    /* 需求匹配与表单板块 */
    .contact-form-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: start;
    }

    .contact-info-panel {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px;
    }

    .info-item {
      display: flex;
      align-items: center;
      gap: 16px;
      margin-bottom: 22px;
    }

    .info-icon {
      width: 44px;
      height: 44px;
      border-radius: 10px;
      background: rgba(0, 242, 254, 0.1);
      border: 1px solid rgba(0, 242, 254, 0.3);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--neon-cyan);
      font-size: 1.2rem;
    }

    .qr-container {
      margin-top: 26px;
      text-align: center;
      background: rgba(10, 13, 26, 0.7);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: var(--radius-md);
      padding: 20px;
    }

    .qr-container img {
      width: 140px;
      height: 140px;
      margin: 0 auto 12px;
      border-radius: 8px;
      border: 2px solid var(--neon-cyan);
      box-shadow: 0 0 16px rgba(0, 242, 254, 0.3);
    }

    .form-panel {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4);
    }

    .form-group {
      margin-bottom: 20px;
    }

    .form-label {
      display: block;
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--text-sub);
      margin-bottom: 8px;
    }

    .form-input,
    .form-select,
    .form-textarea {
      width: 100%;
      background: rgba(12, 16, 32, 0.85);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: var(--radius-sm);
      padding: 12px 16px;
      color: #fff;
      font-size: 0.92rem;
      transition: var(--transition);
      outline: none;
      font-family: inherit;
    }

    .form-input:focus,
    .form-select:focus,
    .form-textarea:focus {
      border-color: var(--neon-cyan);
      box-shadow: 0 0 12px rgba(0, 242, 254, 0.4);
    }

    .form-textarea {
      resize: vertical;
      min-height: 110px;
    }

    .btn-submit {
      width: 100%;
      padding: 14px;
      font-size: 1.02rem;
      font-weight: 700;
      color: #0c0f1d;
      background: linear-gradient(135deg, var(--neon-cyan) 0%, var(--neon-blue) 100%);
      border: none;
      border-radius: var(--radius-sm);
      cursor: pointer;
      box-shadow: 0 0 20px rgba(0, 242, 254, 0.5);
      transition: var(--transition);
    }

    .btn-submit:hover {
      box-shadow: 0 0 30px rgba(0, 242, 254, 0.8);
      transform: translateY(-2px);
    }

    /* 行业资讯与文章 */
    .articles-list-box {
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .article-item-row {
      background: var(--bg-card);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: var(--radius-md);
      padding: 18px 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      transition: var(--transition);
    }

    .article-item-row:hover {
      border-color: var(--neon-cyan);
      transform: translateX(6px);
      box-shadow: 0 4px 18px rgba(0, 242, 254, 0.15);
    }

    .art-title {
      font-size: 1rem;
      font-weight: 600;
      color: #fff;
    }

    .art-badge {
      font-size: 0.8rem;
      padding: 4px 12px;
      background: rgba(0, 242, 254, 0.1);
      border: 1px solid rgba(0, 242, 254, 0.3);
      border-radius: 20px;
      color: var(--neon-cyan);
      white-space: nowrap;
    }

    /* 友情链接与页脚 */
    .footer-section {
      background: #080b15;
      border-top: 1px solid rgba(0, 242, 254, 0.15);
      padding: 60px 0 30px;
      color: var(--text-muted);
      font-size: 0.9rem;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1fr;
      gap: 36px;
      margin-bottom: 45px;
    }

    .footer-col-title {
      font-size: 1.05rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 18px;
      letter-spacing: 0.5px;
    }

    .footer-links-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .footer-links-list a:hover {
      color: var(--neon-cyan);
      padding-left: 4px;
    }

    .friendly-links-wrap {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
    }

    .friendly-links-wrap a {
      font-size: 0.88rem;
      color: var(--text-sub);
      background: rgba(255, 255, 255, 0.04);
      padding: 6px 14px;
      border-radius: 6px;
      border: 1px solid rgba(255, 255, 255, 0.08);
    }

    .friendly-links-wrap a:hover {
      color: var(--neon-cyan);
      border-color: var(--neon-cyan);
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 16px;
    }

    /* 悬浮小组件 */
    .floating-tools {
      position: fixed;
      right: 24px;
      bottom: 30px;
      z-index: 990;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .float-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: rgba(18, 23, 42, 0.9);
      border: 1px solid var(--neon-cyan);
      color: var(--neon-cyan);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      box-shadow: 0 4px 15px rgba(0, 242, 254, 0.3);
      transition: var(--transition);
    }

    .float-btn:hover {
      background: var(--neon-cyan);
      color: #0c0f1d;
      transform: scale(1.1);
      box-shadow: 0 0 20px rgba(0, 242, 254, 0.7);
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .services-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .hero-metrics-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .steps-timeline-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .about-platform-grid {
        grid-template-columns: 1fr;
      }
      .contact-form-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .nav-menu {
        display: none;
        position: absolute;
        top: 76px;
        left: 0;
        width: 100%;
        background: rgba(12, 15, 29, 0.98);
        border-bottom: 1px solid var(--border-color);
        padding: 20px 24px;
        backdrop-filter: blur(20px);
      }
      .nav-menu.open {
        display: block;
      }
      .nav-links {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
      }
      .mobile-toggle {
        display: block;
      }
      .services-grid,
      .case-gallery-grid,
      .reviews-grid {
        grid-template-columns: 1fr;
      }
      .steps-timeline-grid {
        grid-template-columns: 1fr;
      }
      .hero-metrics-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .hero-title {
        font-size: 1.85rem;
      }
      .section-wrap {
        padding: 60px 0;
      }
      .hero-cta-group {
        flex-direction: column;
        width: 100%;
      }
      .btn-hero-primary,
      .btn-hero-secondary {
        width: 100%;
      }
    }